Lateral-motion arch-bar truck.



' PATENTED' Nov. 10, 1903.

I G. H. READ.

LATERAL MOTION ARCH BAR TRUCK. nrmounm rum) JULY 15, 1903. no flown. 2 sums-sum 1.

WiTNES S INVENTOR cw! f 441M "No. 743,559. PATENTED NOV. 10, 1903.

o H. READ.. LATERAL MOTION ARCH BAR TRUCK.

APPLICATION FILED JULY 15, 1903- N0 MODEL. 2 SHEETS-B3331 2.

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UNITED STAT S.

liatented November it), I903.

PATENT UFFICE.

CHARLES H. READ, OF PITTS BURG, PENNSYLVANIA.

LATERAL-MOTION ARCH-'BAR TRUCK.

$PEGIFIGA'IION forming part of Letters Patent No. 743,559, dated November 10, 1903.

Application filed July 15, 1903.

To all whom it may concern:

Be it known that I, CHARLES H. READ, of Pittsburg, Allegheny county, Pennsylvania, have invented a new and useful Lateral-Motion Arch-Bar Truck, of which the following is a full, clear, and exact description, referenee being bad to the accompanying drawings, forming part of this specification, in which- Figure 1 is a side elevation, partly broken away, of the journal-box and arch-bars. Fig. 2 is a front elevation of the same, partly in vertical section. Fig. 3 is a top plan view with the arch-bars removed. Figs. 4 and 5 are detail views of the side bolts, and Figs. 6

- and 7 are detail views showing an inset wearing-plate generally employed.

My invention relates to that class of archbar trucks for railway-cars wherein provision is made for lateral motion of the truck by means of rollers resting on the journal-box; and the object of the invention is to provide a simple and efiective construction of this character wherein the rollers are directly be neath the arch-bars and no separate carriage is used, the rollers contacting directly with the lower arolrbar or with the wear-plate forming part of it.

In the drawings, 2 represents the journalbox, having concave recesses 3 3 extending transversely of its top and arranged to receive the rollers t 4, on which the arch-bars rest.

In the form of Figs. l'to 5, inclusive, the lower arch-bar 5 is provided with incut concave recesses 6 6, extending longitudinally of the arch-bar in the portion over the journalbox and arranged to register with corresponding recesses in the top of the journal-box. The journal-box top is preferably provided with upwardly-projecting stops 7 7 at-its front and rear, these projections being preferably of sufficient length to engage the portions of the arch-bar beyond the recesses 6 and also being preferably of sufficient height to engage the arch-bar above these recesses to limit the lateral travel in both directions.

I have shown the upper arch-bar 8 as secured to the lower arch-bar by the side bolts 9 9, which extend down through elongated openings 10 10, formed upon each side of the box at both its upper and lower ends, and

through the tie-bar 11. The bolts are preferser al No. 165,557. on model.)

ably provided with squared portions 12 in those partswhich move within the elongated openings, which openings permit the travel of the spacing-bolts and limit such travel. These squared portions also enable the side bolts to act as spacers between the arch-bars and the tie-bars. The upper and lower ends of the bolts are provided with the usual nuts 13 and lock-nuts lat.-

Instead of cutting the roller-recesses into the body of the lower arch-bar I may use a wear-plate, which is set in arecess in this arch-bar. Thus in Figs. 6 and 7 I show the wear-plate 15 set in a transverse recess in the lower arch-bar 5 and secured by countersunk rivets 16. This wear-plate is provided with the concave recesses 6 and is preferably provided with end lips or flanges 17, which project over and engage the side edges of the lower arch-bars.

In operation when the side motion of the truck occurs this side motion will be converted into a vertical motion of the truck through the lifting action of the rollers in the curved groove. Side blows on the wheelflanges will thus be obviated, preventing their breakage and rapid wear of the wheel-flanges and the rails. The amount of side motion is limited by the upper stops on the journal. box and also by its side openings, which engage the bolts, also by the rising of the tiebar against the bottom of the journal-box.

The advantages of myinvention result from the forming of the roller-grooves Within the lower side bar or wear-plate forming a part of it. This construction allows the arch-bars to be placed at the level required by the Master Oar-Builders standard and permits the device to be applied to existing arch-bar trucks. The stop system limits the lateral movement, and the only change necessary in existing trucksis to provide the recesses in the archbars. The parts are interchangeable according to Master Oar-Builders requirements, and astrong and efficient construction is afforded.

Variations may be made in the form and arrangement of the journal-box, the archbars, rollers, &e., withoutdeparting from my invention.

I claim- 1. An arch-bar truck having a lower archbar provided with recesses over the journal- 5. A lateral-motion arch-bar truck having a wear-plate set in a recess in the under side of the lower arch-bars, and rollers on which the wear plate rests; substantially as described.

6. A lateral-motion arch-bar truck having a wear-plate set in a recess in the lower archbar and having curved recesses, and rollerswithin the recesses, resting on the journalbox; substantially as described.

In testimony whereof I have hereunto set my hand.

CHAS. 11. READ.

Witnesses:

JOHN MILLER, H. M. OORWIN. 

